Things You'll Need
- Test kit
- Scrub brush
- Aquarium vacuum
- Light timer (optional)
Instructions
Use a test kit to test for silicates, which can build up when tap water is used, due to its high silicic acid content, and for nitrates, which can build up if water is not regularly changed. Both of these are among the main sources for brown algae growth. Purchase the kit from an aquarium supply store and follow the instructions to test levels. Test kits include methyl alcohol, glass test tubes, a syringe, plastic filter holder, check valve, filter paper and glass, and Tygon Tubing with an adapter. Adjust your saltwater levels, accordingly, based on the test results.
Change tank water every few weeks and more often if you have a high fish population. Regular water changing removes silicates and nitrates from the water.
Scrub algae on tank walls and rocks with a scrub pad. Vacuum the bottom of the tank, using an aquarium vacuum, every few weeks, before replacing with fresh saltwater. Rinse the scrub pad well once you are finished.
Refrain from over-feeding your fish, which results in more nutrients in the water and leads to algae growth.